will not rev past 2500

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eric p

New Member
i put a '99ls into my '00 civic. starts and idles great but will not rev past 2500 rpms. wont rev in any gear or neutral. need help. thanks
Most likely Limp mode but more possible ecu wiring not done right. Limp mode should at least rev up to 4500.
i was thinking some kind of limp mode also. i just got done looking at a different wiring diagram and i may have some wires from the dist wrong, will check in the a.m. thanks